/Engine/Plugins/Online/OnlineSubsystem/Source/Public/Interfaces/OnlineLeaderboardInterface.h
Writes the score data for the match, used for rankings/ratings
true if the call is successful, false otherwise
bool WriteOnlinePlayerRatings ( const [FName](API\Runtime\Core\UObject\FName) & SessionName, int32 LeaderboardId, const [TArray](API\Runtime\Core\Containers\TArray)< [FOnlinePlayerScore](API\Plugins\OnlineSubsystem\FOnlinePlayerScore) > & PlayerScores )